d features electronics variable pitch control

LG RNC7 XBOOM Wireless Party Speaker - Black

Altec Lansing Soundrover 75 Wireless Speaker

Harbinger M200-BT Portable PA System - 10" Mains

Refurbished: Harman Kardon HKSOUNDSTICK4WAM-Z 2.1 SoundSticks 4 Speaker – Manufacturer Refurbished

LG XG2T XBOOM Go Wireless Speaker with Powerful Sound

Altec Lansing Jacket H20 4 Bluetooth Speaker

Skullcandy Terrain Mini Wireless Bluetooth Speaker - IPX7 Waterproof Portable Speaker, 14 Hour Battery, Nylon Wrist Wrap & True Wireless Stereo

TOPTECH Rock-8, 1500W Portable Bluetooth Speaker with Disco Lights & Microphone

Fluance Ai41 Powered 2-Way 2.0 Stereo Bookshelf Speakers with 5" Drivers, 90W Amplifier for Turntable, TV, PC, Bluetooth

Pyle Outdoor Waterproof Wireless Bluetooth Speaker - Black

Fluance Ai61 Powered 2-Way 2.0 Stereo Bookshelf Speakers with 6.5" Drivers, 120W Amp for Turntable, TV, PC, Bluetooth

Skullcandy Stomp Bluetooth Speaker – IPX7 Waterproof Wireless Portable Speaker, with LED Lightshow & Strobe Modes, 12 Hour Battery, Multi-Link

ION® Power Glow™ 300 300-Watt Portable Bluetooth® Party System Speaker with Lights, Microphone, and Stereo-Link™

ION® Pro Glow™ Ultra High-Power Portable Bluetooth® PA Speaker with Lights, Sonic Wide Audio, and Microphone, Black

VEATOOL Portable Bluetooth Speaker – 60W Peak Sound, Bass Boost, 24H Playtime, IPX7, RGB Lights, Mic Input for Karaoke

RCA Disco-208 Flame Effect Bluetooth Party Speaker with Dual 8" Woofers

Skullcandy Barrel Mini Wireless Boombox Speaker, Bluetooth 5.3, IPX7 Waterproof, 12Hr Battery, LED Lights, Portable with True Wireless Stereo

VEVOR 4 PCs 6.5'' Bluetooth in Ceiling Speakers, 150W, Flush Mount Ceiling & in-Wall Speaker System with 8ΩImpedance 89dB Sensitivity, White

Sony Complete 7 Speaker System-SSCS3M2 (2),SSCS5M2 (PAIR),SSCS8M2,SSCSEM2 (PAIR)